image

app.py

@@ -1,8 +1,17 @@
+import numpy as np
+
 import gradio as gr
 
-def greet(image):
-    return image
+def sepia(input_img):
+    sepia_filter = np.array(
+        [[0.393, 0.769, 0.189], [0.349, 0.686, 0.168], [0.272, 0.534, 0.131]]
+    )
+    sepia_img = input_img.dot(sepia_filter.T)
+    sepia_img /= sepia_img.max()
+    return sepia_img
+
+demo = gr.Interface(sepia, gr.Image(shape=(200, 200)), "image")
+
+demo.launch()
 
-iface = gr.Interface(fn=greet, inputs="image", outputs="image")
-iface.launch()